> Markdown version of [/jobs/ext/4642003-senior-full-stack-dev-ai-driven-madrid-relocation](https://www.wearedevelopers.com/jobs/ext/4642003-senior-full-stack-dev-ai-driven-madrid-relocation). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Full-Stack Dev - AI-Driven, Madrid Relocation - **Company:** Lemon - **Location:** Madrid, Spain - **Contract:** Permanent contract - **Skills:** Artificial Intelligence, Node.Js, TypeScript, ReactJS, Backend, Front End Software Development, Serverless Computing - **Published:** November 9, 2026 - **Apply:** https://www.jobleads.com/es/job/senior-full-stack-dev-ai-driven-madrid-relocation--madrid--e792356e9cf3f8ede3821de4ce6862508 ## About the Role You will design and build full-stack features using Node.js/TypeScript on the backend and React on the frontend, while mentoring juniors and contributing to technical strategy. Strong English and work authorization for Spain are required. ## Description Lemon.io is hiring a Senior Full-Stack Developer to shape a supplier intelligence product inside the company's serverless development platform. You will work in-house, with relocation to Madrid and a small agile squad of 4-6 people. You will design and build full-stack features using Node.js/TypeScript on the backend and React on the frontend, while mentoring juniors and contributing to technical strategy. Strong English and work authorization for Spain are required.